SPT-2003 telecommunications transformers for high-speed T1/E1 data transmission applications provide primary impedance of 100 ohms and secondary impedance of 400 ohms total in a compact design.

Rated at 0 mA direct current, the units have a frequency response of ۪.5 dB from 100 KHz to 4 MHz referenced to 772 KHz. The longitudinal balance specification is 35 dB minimum at 1.544 MHz, and dielectric strength is 1,500 Vdc. Placed on a six-pin through-hole bobbin, the device has overall dimensions of 0.433 x 0.394 in. with a height of 0.413 in. maximum.

Pricing in production quantities is $2.22 each.